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Actuator Pivot Bearing to Comb Joint

IP.com Disclosure Number: IPCOM000014698D
Original Publication Date: 2000-Dec-01
Included in the Prior Art Database: 2003-Jun-20
Document File: 1 page(s) / 56K

Publishing Venue

IBM

Abstract

Disclosed is a device that provides a stiff joint between the bearing cartridge and actuator comb which results in improved hard drive dynamics and performance. This joint also allows the actuator to be re-worked by allowing the pivot cartridge to be removed and reassembled.

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Actuator Pivot Bearing to Comb Joint

Disclosed is a device that provides a stiff joint between the bearing cartridge and actuator comb which results in improved hard drive dynamics and performance. This joint also allows the actuator to be re-worked by allowing the pivot cartridge to be removed and reassembled.

     The figure shows the top view of a head stack assembly (HSA). The comb structure and pivot bearing are evident at the center of the figure. A slot is machined completely through the comb wall adjacent to the pivot bearing. This slot, in combination with the screw, allows the comb to be "squeezed" by flexing the comb structure around the pivot bearing. Once the screw is tight, the load path for the dynamic forces proceed from the comb wall through the pivot bearing outer steel case and back into the comb wall on the opposite side of the slot. This provides a stiff joint required for good HSA dynamics.

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